The time to stand up was actually way before the extreme actions of the left inspired this extreme reactionary overcorrection from the right. You're supposed to stand up while you're still in power, not after you've lost it, it's a bit late. I still remember people insisting "but deplatforming works!" as they justified mass censorship of conservatives. Honestly if you have not stood up for the people you politically disagreed with as the noose tightened over the last 10 years you are part of the cause of this terrible over-correction.
I can only hope that people start noticing this pattern and the inevitable next "correction" is not so extreme and we get some damping on the seemingly accelerating pendulum back and fourth.